I try to connect Q.B with Power Bi but doesn't work

It's nice to see you here in the Community, @Mona Shaaban.

I've got some insights to share regarding the applications that can be integrated with QuickBooks Online.

There are various apps that can be integrated into QBO, these can be found on our Apps site. All applications seen on this site are ready to be connected to the system.

However, if you're not able to find Power BI on the said site, I recommend reaching out to our Intuit Developer Team. This team is the best resource for such inquiries as they do app development, integrations, and programming. They can provide information regarding other ways to connect the app.

Here's how to get in touch with them:

1. Go to this link: https://developer.intuit.com/.
2. Scroll down, click Contact us under the Intuit column.
3. Choose your subscription.
   
4. Sign in using your QuickBooks Online login credentials.
   
5. Click Ask a Question.
   
6. Follow on-screen instructions.

Let me know if you need anything else by commenting below with QuickBooks. I'm always around to help you.